Justification:A. hispanica has experienced a decline in population of >50% in 10 years, and it is ongoing in spite of the establishment of a conservation program. The population is fragmented due to dams and is declining due to water extraction, introduced species and pollution.

This species lives most of the time in small intermittent streams of the Guadiana River basin with high dissolved oxygen concentrations, coarse substratum, shallow depth and water temperature below 25°C. It is a short-lived species (maximum three years old) achieving a small size (< 60 mm). Reproduction takes place in April–May. It is a species with limited dispersal. (Doadrio 2001).